Heat pinches in electron-heated Tokamak plasmas: Theoretical turbulence models versus experiments

P. Mantica, A. Thyagaraja, J. Weiland, G.M.D. Hogeweij, P.J. Knight

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Abstract

Two fluid turbulence models, the drift wave based quasilinear 1.5D Weiland model and the electromagnetic global 3D nonlinear model cutie, have been used to account for heat pinch evidence in off-axis modulated electron cyclotron heating experiments in the Rijnhuizen Tokamak Project. Both models reproduce the main features indicating inward heat convection in mildly off-axis cases. In far-off-axis cases with hollow electron temperature profiles, the existence of outward convection was reproduced only by cutie. Turbulence mechanisms driving heat convection in the two models are discussed. © 2005 The American Physical Society.
Original languageEnglish
Article number185002
Pages (from-to)-
JournalPhysical Review Letters
Volume95
Issue number18
DOIs
Publication statusPublished - 28 Oct 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Mantica, P., Thyagaraja, A., Weiland, J., Hogeweij, G. M. D., & Knight, P. J. (2005). Heat pinches in electron-heated Tokamak plasmas: Theoretical turbulence models versus experiments. Physical Review Letters, 95(18), -. [185002]. https://doi.org/10.1103/PhysRevLett.95.185002